Forget spending $15k on this. Build the Linkwitz LX521 system for 1/3rd the price, get a loudspeaker at least as good and likely better, and being this is a DIY project, you'll have much, MUCH more enjoyment from your system. Spend your $10k savings elsewhere.
Or... you can just go buy your loudspeakers the same way you buy furniture.
Or... you can just go buy your loudspeakers the same way you buy furniture.